A bolt tensile force detection method

Abstract

The application belongs to the field of bolt detection devices, and particularly relates to a bolt tensile resistance detection method, which comprises a machining table body, the bottom of the machining table body is fixedly connected with a supporting column, and the top of the supporting column is fixedly connected with a supporting rod; the bolts can be placed on a group of fixed blocks through the fixed blocks, a first motor is started to rotate a first screw rod, a second fixed plate on one side is driven to move to one side of the first fixed plate, four groups of bolts on the two groups of fixed blocks are fixed, a first hydraulic cylinder is started until the four groups of bolts move to the top of four gears, a second hydraulic cylinder is started to drive the gear plate to move, the gear plate drives the gears and the threaded sleeve to rotate, the threaded sleeve rotates to rotate the bottoms of the four groups of bolts until the bottoms of the four groups of bolts are fixed, the first hydraulic cylinder is retracted to drive the first fixed plate and the second fixed plate to move upwards, so that multiple groups of bolts can be detected at the same time, and the problem of low efficiency of the existing bolt tensile resistance detection device is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bolt detection device, and particularly relates to a bolt tensile force detection method. BACKGROUND

[0002] The bolt is a kind of engineering commonly used parts, usually by hexagonal head and screw rod, need to be equipped with nut, used for fastening two groups of parts with holes, after the bolt is produced, the bolt needs to be subjected to tensile force, so as to test the qualified rate of the bolt.

[0003] The bolt detection device usually includes fixed nut and motor, etc., when the bolt is processed, the bolt is usually put into the detection device, one end of the hexagonal bolt is fixed, and the end of the bolt with screw is tightened by using the nut, then the tensile force of the bolt can be detected by pulling one end of the hexagonal bolt.

[0004] In the prior art, when the bolt is subjected to tensile force detection, a plurality of samples need to be detected, and since the existing bolt tensile force detection device can only detect one group of bolts, the detection efficiency is low, therefore, the bolt tensile force detection method is proposed for the above problems. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the present application provides a bolt tensile force detection method.

[0006] The technical scheme adopted by the present application to solve the technical problems is that the bolt tensile force detection method comprises the following steps:

[0007] S1: according to the number of batches of bolts, the number of bolts to be measured is calculated, and a group of bolts to be detected is prepared for detection according to the measurement requirement;

[0008] S2: the surface of the bolt to be detected is checked to determine whether the surface of the bolt to be detected has cracks, defects and other defective phenomena, and the bolt with defective phenomena is rejected;

[0009] S3: the two groups of fixed blocks of the bolt detection device are adjusted according to the size of the bolt, the bolt is placed between the two groups of fixed blocks, and the bolt is fixed by the two groups of fixed blocks, a plurality of bolts can be fixed at the same time, then the clamping piece and the bolt are moved downward to the bottom of the limiting plate by the hydraulic cylinder, and pass through the limiting plate;

[0010] S4: then install the nut at the bottom of the limiting plate, rotate the nut into the bottom of the bolt, and fix the bottom of the bolt by tightening the nut;

[0011] S5: start the hydraulic cylinder, adjust the tension value, then the hydraulic cylinder moves up and pulls the bolt at the same time until the bolt breaks, and records the value at the time of breakage.

[0012] Preferably, the bolt detection device in S3 is specifically: the bolt detection device includes a machining table body, a support column is fixedly connected to the bottom of the machining table body, a support rod is fixedly connected to the top end of the support column, a first hydraulic cylinder is fixedly connected to the bottom of one side of the support rod, and a clamping assembly is arranged at the bottom of the first hydraulic cylinder;

[0013] The clamping assembly includes a top plate, the top plate is fixedly connected to the bottom of the first hydraulic cylinder, a first fixed plate is fixedly connected to the bottom of one side of the top plate, a fixed block is fixedly connected to one side of the first fixed plate, a first motor is fixedly connected to the side of the first fixed plate away from the fixed block, a first screw rod is fixedly connected to the output end of the first motor, the first screw rod penetrates through the first fixed plate on one side, a first sliding groove is formed in the side of the bottom of the top plate away from the first fixed plate, a first sliding rod is slidably connected to the inner wall of the first sliding groove, the first sliding rod extends out of the first sliding groove at the bottom, a second fixed plate is fixedly connected to the bottom of the first sliding rod, a threaded hole is formed in the inner wall of the second fixed plate, the first screw rod is threadedly connected to the inner wall of the second fixed plate, the fixed block is provided with eight groups and is symmetrically distributed on one side of the first fixed plate and the second fixed plate, an arc-shaped groove is formed in the inner wall of the fixed block, a supporting plate is fixedly connected to one side of the machining table body, a second hydraulic cylinder is fixedly connected to the top end of the supporting plate, a toothed plate is fixedly connected to one end of the second hydraulic cylinder, a bottom plate is fixedly connected to the top end of the machining table body, a circular hole is formed in the top end of the bottom plate, a placing groove is formed in one side of the top end of the bottom plate, the toothed plate is slidably connected to the inner wall of the placing groove, a rotating groove is formed in the top end of the bottom plate, the cross section of the rotating groove is L-shaped, the rotating groove is annular in shape, the rotating groove is arranged outside the circular hole, a rotating block is rotatably connected to the inner wall of the rotating groove, the cross section of the rotating block is L-shaped, the rotating block extends out of the rotating groove at the top end, a gear is fixedly connected to the top end of the rotating block, the gear is engaged with the toothed plate on one side, a threaded sleeve is fixedly connected to the center of the gear, the gear, the threaded sleeve, the rotating groove and the circular hole are provided with four groups and are parallelly distributed on the top of the bottom plate.

[0014] Preferably, one side of the top end of the processing table body is fixedly connected with a limiting block, a second screw is rotationally connected to the inner wall of the limiting block, the second screw is a bidirectional screw, a positioning block is sleeved with the side of the second screw away from the limiting block, the bottom of the positioning block is fixedly connected to the top end of the processing table body, the side of the second screw away from the positioning block penetrates through the limiting block, a rotating disc is fixedly connected to the side of the second screw away from the positioning block, a nut is threadedly connected to the outer wall of the second screw, a connecting rod is fixedly connected to the top end of the nut, a limiting plate is fixedly connected to the top end of the connecting rod, the limiting plate is arranged at the top of the threaded sleeve, a circular groove is formed in one side of the limiting plate, an inclined slope is formed in the top end of the circular groove, a second sliding groove is formed in the top end of the processing table body, a second sliding rod is slidably connected to the inner wall of the second sliding groove, the top end of the second sliding rod protrudes out of the second sliding groove, and the top end of the second sliding rod is fixedly connected with the limiting plate; the limiting plate, the connecting rod, the nut, the second sliding groove and the second sliding rod are arranged in two groups and symmetrically distributed on the top end of the processing table body.

[0015] Preferably, the top end of the fixing block is fixedly connected with a backing plate, the shape of the backing plate is consistent with that of the fixing block, and the material of the backing plate is rubber.

[0016] Preferably, the top end of the threaded sleeve is fixedly connected with a receiving sleeve, the receiving sleeve is funnel-shaped, the size of the bottom of the receiving sleeve is consistent with that of the top end of the threaded sleeve, and the top end of the receiving sleeve is attached to the bottom of the limiting plate.

[0017] Preferably, one side of the supporting column is fixedly connected with a reinforcing rib, the top end of the reinforcing rib is fixedly connected to the bottom of the processing table body, and the reinforcing rib and the supporting column are arranged in four groups and symmetrically distributed on the bottom of the processing table body.

[0018] Preferably, the shape of the supporting rod is L-shaped, a supporting plate is fixedly connected to the inner wall of the supporting rod, and the supporting plate is arranged in an inclined manner.

[0019] Preferably, the bottom of the supporting column is fixedly connected with a bottom pad, the material of the bottom pad is rubber, and the number of the bottom pad is consistent with that of the supporting column.

[0020] The application has the advantages that:

[0021] 1. The present application sets up a fixed block, which can facilitate the placement of bolts on a group of fixed blocks, and starts the first motor to rotate the first screw rod, at the same time, drives one side of the second fixed plate to move to the side of the first fixed plate, until the fixed block on one side of the second fixed plate extrudes and fixes the four groups of bolts on the fixed block on one side of the first fixed plate, starts the first hydraulic cylinder, until the four groups of bolts move to the top of the four groups of gears, then starts the second hydraulic cylinder to push the gear plate to move, and drives the gear and the threaded sleeve inside the gear to rotate through the gear plate, and the rotation of the threaded sleeve can rotate the bottom of the four groups of bolts, until the four groups of bolts are fixed, then the first hydraulic cylinder can be retracted, the first fixed plate and the second fixed plate are driven upward, the bolts can be pulled upward, so that multiple groups of bolts can be detected at the same time, solving the problem of low efficiency of the existing bolt tensile strength detection device.

[0022] 2. The present application rotates the turntable, drives the second screw rod to rotate, because the second screw rod is a bidirectional screw rod, so it can drive the two groups of nuts, connecting rods and limit plates at the top to move to the center, by opening the second sliding groove at the top of the machining table body, the second sliding rod arranged at the bottom of the limit plate can move in the second sliding groove when the limit plate moves, so as to guide the movement track of the limit plate, after the two groups of limit plates contact, four groups of circular grooves can be formed at the bottom of the bolt, which can limit the movement track of the bolt when the bolt moves downward, by setting a slope at the top of the circular groove, the bolt can pass through the circular groove. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of embodiment one;

[0025] Figure 2 It is a schematic diagram of the first three-dimensional cross-sectional structure of embodiment one;

[0026] Figure 3 It is a schematic diagram of the second three-dimensional cross-sectional structure of embodiment one; Figure 2

[0027] Figure 4 It is a schematic diagram of the second three-dimensional cross-sectional structure of embodiment one;

[0028] Figure 5 It is a schematic diagram of the second three-dimensional cross-sectional structure of embodiment one; Figure 4

[0029] ​​Figure 6 Figure 3 is a third perspective view of the third profile structure of the embodiment 1;

[0030] Figure 7 Figure 4 is a zoomed view of C in Figure 6 Figure 5 is a zoomed view of D in

[0031] In the figure: 1, processing table body; 2, support column; 3, support rod; 4, first hydraulic cylinder; 6, top plate; 7, first fixed plate; 8, fixed block; 9, first motor; 10, first screw rod; 11, second fixed plate; 12, first sliding groove; 13, first sliding rod; 14, supporting plate; 15, second hydraulic cylinder; 16, toothed plate; 17, bottom plate; 18, placing groove; 19, rotating groove; 20, rotating block; 21, gear; 22, threaded sleeve; 23, limiting block; 24, second screw rod; 25, positioning block; 26, rotating disc; 27, nut; 28, connecting rod; 29, limiting plate; 30, second sliding groove; 31, second sliding rod; 32, cushion plate; 33, receiving sleeve; 34, reinforcing rib; 35, slope; 36, support plate; 37, bottom cushion. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0033] Embodiment 1

[0034] Referring to Figures 1-7 Figure 1, a bolt tensile force detection method comprises the following steps:

[0035] S1: The number of bolts to be measured is calculated according to the number of bolts in a batch, and a group of bolts to be detected is prepared for detection according to the measurement requirements;

[0036] S2: The surface of the bolt to be detected is inspected to determine whether the surface of the bolt to be detected has cracks, defects and other defective phenomena, and the bolt with defective phenomena is rejected;

[0037] S3: The two groups of fixed blocks of the bolt detection device are adjusted according to the size of the bolt, the bolt is placed between the two groups of fixed blocks, and the bolt is fixed by the two groups of fixed blocks. A plurality of bolts can be fixed at the same time. Then the clamping piece and the bolt are moved downward to the bottom of the limiting plate by the hydraulic cylinder, and pass through the limiting plate;

[0038] S4: Then install the nut at the bottom of the limiting plate, rotate the nut into the bottom of the bolt, and fix the bottom of the bolt by tightening the nut;

[0039] S5: start the hydraulic cylinder, adjust the tension value, then the hydraulic cylinder moves up and pulls the bolt at the same time until the bolt breaks, and records the value at the time of breakage.

[0040] The bolt detection device in S3 is specifically: the bolt detection device comprises a machining table body, a support column 2 is fixedly connected to the bottom of the machining table body 1, a support rod 3 is fixedly connected to the top end of the support column 2, a first hydraulic cylinder 4 is fixedly connected to the bottom of one side of the support rod 3, and a clamping assembly is arranged at the bottom of the first hydraulic cylinder 4;

[0041] The clamping assembly comprises a top plate 6, the top plate 6 is fixedly connected to the bottom of the first hydraulic cylinder 4, a first fixed plate 7 is fixedly connected to the bottom of one side of the top plate 6, a fixed block 8 is fixedly connected to one side of the first fixed plate 7, a first motor 9 is fixedly connected to the side away from the fixed block 8 of the first fixed plate 7, a first screw rod 10 is fixedly connected to the output end of the first motor 9, the first screw rod 10 penetrates through the first fixed plate 7 on one side, a first sliding groove 12 is formed in the side away from the first fixed plate 7 of the bottom of the top plate 6, a first sliding rod 13 is slidably connected to the inner wall of the first sliding groove 12, the first sliding rod 13 extends out of the first sliding groove 12 at the bottom, a second fixed plate 11 is fixedly connected to the bottom of the first sliding rod 13, a threaded hole is formed in the inner wall of the second fixed plate 11, the first screw rod 10 is threadedly connected to the inner wall of the second fixed plate 11, the fixed block 8 is provided with eight groups and is symmetrically distributed on one side of the first fixed plate 7 and the second fixed plate 11, an arc-shaped groove is formed in the inner wall of the fixed block 8, a supporting plate 14 is fixedly connected to one side of the machining table body 1, a second hydraulic cylinder 15 is fixedly connected to the top end of the supporting plate 14, a toothed plate 16 is fixedly connected to one end of the second hydraulic cylinder 15, a bottom plate 17 is fixedly connected to the top end of the machining table body 1, a circular hole is formed in the top end of the bottom plate 17, a placing groove 18 is formed in one side of the top end of the bottom plate 17, the toothed plate 16 is slidably connected to the inner wall of the placing groove 18, a rotating groove 19 is formed in the top end of the bottom plate 17, the cross section of the rotating groove 19 is L-shaped, the shape of the rotating groove 19 is annular, the rotating groove 19 is arranged outside the circular hole, a rotating block 20 is rotatably connected to the inner wall of the rotating groove 19, the cross section of the rotating block 20 is L-shaped, the rotating block 20 extends out of the rotating groove 19 at the top end, a gear 21 is fixedly connected to the top end of the rotating block 20, the gear 21 is engaged with the toothed plate 16 on one side, a threaded sleeve 22 is fixedly connected to the center of the gear 21, the gear 21, the threaded sleeve 22, the rotating groove 19 and the circular hole are provided with four groups and are parallelly distributed on the top of the bottom plate 17;

[0042] In operation, in the prior art, when detecting the tensile resistance of the bolts, a plurality of samples need to be detected, and since the existing bolt tensile resistance detection device can usually only detect a group of bolts, the detection efficiency is low. To solve the problem of low efficiency of the existing bolt tensile resistance detection device, when the bolts need to be fixed and detected, four groups of bolts are placed in the fixing blocks 8 on one side of the first fixed plate 7, and the first motor 9 is started to drive the first screw rod 10 on one side to rotate. When the first screw rod 10 rotates, the second fixed plate 11 arranged on one side will move towards the first fixed plate 7, and at the same time, the fixing blocks 8 on one side of the second fixed plate 11 will move towards the first fixed plate 7. By arranging the first sliding groove 12 at the bottom of the top plate 6, when the second fixed plate 11 moves towards the first fixed plate 7, the first sliding rod 13 arranged at the top end of the second fixed plate 11 will move in the first sliding groove 12, so as to limit the movement track of the second fixed plate 11. Until the fixing blocks 8 on one side of the second fixed plate 11 extrude and fix the four groups of bolts on the fixing blocks 8 on one side of the first fixed plate 7, then the first hydraulic cylinder 4 is started to drive the first fixed plate 7 and the second fixed plate 11 to move downwards until the four groups of bolts move to the top of the four groups of gears 21, then the second hydraulic cylinder 15 is started to drive the tooth plate 16 arranged on one side to move in the placement groove 18 arranged at the top end of the bottom plate 17. When the tooth plate 16 moves, the gear 21 arranged on one side will rotate. By opening the rotating groove 19 at the top end of the supporting plate 14, when the gear 21 rotates, the rotating block 20 fixed at the bottom of the gear 21 can rotate in the rotating groove 19, so as to prevent the gear 21 from moving when rotating. When the gear 21 rotates, the threaded sleeve 22 arranged inside will rotate, and by rotating the threaded sleeve 22, the four groups of bolts at the bottom can be rotated until the four groups of bolts are fixed. Then the first hydraulic cylinder 4 is retracted to drive the first fixed plate 7 and the second fixed plate 11 to move upwards, the bolts can be pulled upwards, so that a plurality of groups of bolts can be detected at the same time. Until the bolts are pulled off, it is convenient to detect a plurality of groups of bolts at the same time.

[0043] The top end of the machining table body 1 is fixedly connected with a limiting block 23, a second screw 24 is rotatably connected to the inner wall of the limiting block 23, the second screw 24 is a bidirectional screw, a positioning block 25 is sleeved with the side of the second screw 24 away from the limiting block 23, the bottom of the positioning block 25 is fixedly connected to the top end of the machining table body 1, the side of the second screw 24 away from the positioning block 25 penetrates through the limiting block 23, a rotating disc 26 is fixedly connected to the side of the second screw 24 away from the positioning block 25, a nut 27 is threadedly connected to the outer wall of the second screw 24, a connecting rod 28 is fixedly connected to the top end of the nut 27, a limiting plate 29 is fixedly connected to the top end of the connecting rod 28, the limiting plate 29 is arranged at the top of the threaded sleeve 22, a circular groove is formed in one side of the limiting plate 29, an inclined slope 35 is formed in the top end of the circular groove, a second sliding groove 30 is formed in the top end of the machining table body 1, a second sliding rod 31 is slidably connected to the inner wall of the second sliding groove 30, the top end of the second sliding rod 31 protrudes out of the second sliding groove 30, the top end of the second sliding rod 31 is fixedly connected with the limiting plate 29, the limiting plate 29, the connecting rod 28, the nut 27, the second sliding groove 30 and the second sliding rod 31 are all arranged in two groups and symmetrically distributed on the top end of the machining table body 1.

[0044] When working, the second screw 24 can be installed in the limiting block 23 by arranging the limiting block 23 on the top end of the machining table body 1, the two ends of the second screw 24 can be kept horizontal by arranging the positioning block 25 on the side of the top end of the machining table body 1 away from the limiting block 23, the second screw 24 can be rotated by rotating the rotating disc 26 when the bolt is moved downward, the two groups of nuts 27 at the top can be moved to the center at the same time when the second screw 24 is rotated, the two groups of connecting rods 28 and limiting plates 29 at the top can be moved to the center when the two groups of nuts 27 are moved, the second sliding rod 31 arranged at the bottom of the limiting plate 29 can be moved in the second sliding groove 30 when the limiting plate 29 is moved by arranging the second sliding groove 30 on the top end of the machining table body 1, thereby guiding the movement track of the limiting plate 29, four circular grooves can be formed at the bottom of the bolt when the two groups of limiting plates 29 are contacted, the movement track of the bolt can be limited by the four circular grooves when the bolt is moved downward, the bolt can pass through the circular groove by arranging the inclined slope 35 on the top end of the circular groove.

[0045] The top end of the fixing block 8 is fixedly connected with a pad 32, the shape of the pad 32 is consistent with that of the fixing block 8, the material of the pad 32 is rubber, and the number of the pad 32 is consistent with that of the fixing block 8.

[0046] When working, the bolt can be provided with a buffer force when being clamped and broken by arranging the pad 32 made of rubber on the top end of the fixing block 8.

[0047] The top end of the threaded sleeve 22 is fixedly connected to a receiving sleeve 33, which is funnel-shaped. The bottom of the receiving sleeve 33 is the same size as the top end of the threaded sleeve 22, and the top end of the receiving sleeve 33 is in contact with the bottom of the limiting plate 29.

[0048] During operation, by setting a funnel-shaped receiving sleeve 33 at the top of the threaded sleeve 22, the bottom of the bolt can be guided by the receiving sleeve 33 when the bottom of the bolt moves downward, making it easier to insert the bottom of the bolt into the threaded sleeve 22.

[0049] A reinforcing rib 34 is fixedly connected to one side of the support column 2. The top of the reinforcing rib 34 is fixedly connected to the bottom of the processing table 1. There are four sets of reinforcing ribs 34 and support columns 2, which are symmetrically distributed at the bottom of the processing table 1.

[0050] During operation, by setting a reinforcing rib 34 on one side of the support column 2, a stable support can be provided for the bottom of the processing table 1, which helps to improve stability.

[0051] The support rod 3 is L-shaped, and a support plate 36 is fixed to the inner wall of the support rod 3. The support plate 36 is inclined.

[0052] During operation, by setting an inclined support plate 36 on the inner wall of the support rod 3, the stability of the L-shaped support rod 3 can be improved by the support plate 36.

[0053] The bottom of the support column 2 is fixedly connected to a bottom pad 37, the bottom pad 37 is made of rubber, and the number of bottom pads 37 is the same as that of the support column 2;

[0054] During operation, a rubber pad 37 is installed at the bottom of the support column 2 to provide cushioning force to the bottom of the support column 2.

[0055] The working principle is that in order to solve the problem of low efficiency of the existing bolt tension detection device, when the bolt needs to be fixed and detected, four groups of bolts are placed in the fixed blocks 8 on one side of the first fixed plate 7, and the first motor 9 is started to drive the first screw rod 10 on one side to rotate. When the first screw rod 10 rotates, the second fixed plate 11 arranged on one side will move to the side of the first fixed plate 7, and at the same time, the fixed blocks 8 on one side of the second fixed plate 11 will move to the side of the first fixed plate 7. By arranging the first sliding groove 12 at the bottom of the top plate 6, when the second fixed plate 11 moves to the side of the first fixed plate 7, the first sliding rod 13 arranged at the top of the second fixed plate 11 can move in the first sliding groove 12, so that the movement track of the second fixed plate 11 can be limited. Until the fixed blocks 8 on one side of the second fixed plate 11 extrude and fix the four groups of bolts on the fixed blocks 8 on one side of the first fixed plate 7. Then the first hydraulic cylinder 4 can be started to drive the first fixed plate 7 and the second fixed plate 11 to move downwards. By rotating the rotating disc 26, the rotating disc 26 drives the second screw rod 24 to rotate. Since the second screw rod 24 is a bidirectional screw rod, when the second screw rod 24 rotates, the two groups of nuts 27 at the top will move to the center at the same time. When the two groups of nuts 27 move, the two groups of connecting rods 28 and the limiting plates 29 at the top will move to the center. By opening the second sliding groove 30 at the top of the machining table body 1, when the limiting plate 29 moves, the second sliding rod 31 arranged at the bottom of the limiting plate 29 can move in the second sliding groove 30, so that the movement track of the limiting plate 29 can be guided. After the two groups of limiting plates 29 contact, four circular grooves can be formed at the bottom of the bolts. When the bolts move downwards, the four circular grooves can be used to limit the movement track of the bolts. By arranging the slope 35 at the top of the circular groove, the bolt can pass through the circular groove. By arranging the funnel-shaped receiving sleeve 33 at the top of the threaded sleeve 22, the receiving sleeve 33 can guide the bottom of the bolt, so that the bottom of the bolt can be inserted into the threaded sleeve 22. After the four groups of bolts move to the top of the four groups of gears 21, the second hydraulic cylinder 15 is started to drive the tooth plate 16 arranged on one side to move in the placing groove 18 arranged at the top of the bottom plate 17. When the tooth plate 16 moves, the gear 21 arranged on one side will rotate. By opening the rotating groove 19 at the top of the supporting plate 14, when the gear 21 rotates, the rotating block 20 fixedly connected to the bottom of the gear 21 can rotate in the rotating groove 19, so that the position of the gear 21 can be prevented from moving when the gear 21 rotates. When the gear 21 rotates, the threaded sleeve 22 arranged inside will rotate, and the rotation of the threaded sleeve 22 can rotate the bottom of the four groups of bolts. Until the four groups of bolts are fixed, the first hydraulic cylinder 4 can be retracted to drive the first fixed plate 7 and the second fixed plate 11 to move upwards, so that the bolts can be pulled upwards, and multiple groups of bolts can be detected at the same time. Until the bolts are pulled off, multiple groups of bolts can be detected at the same time.By arranging the reinforcing rib 34 on one side of the supporting column 2, a firm support can be provided for the bottom of the processing table body 1.

[0056] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A method for detecting the tensile resistance of a bolt, characterized by: Including the following steps: S1: according to the number of batch bolts to calculate the number of bolts required to measure, and according to the measurement requirements to take a group of bolts to be detected for preparation detection; S2: the surface of the bolt to be detected is checked, whether the surface of the bolt to be detected has crack, defect and other defective phenomena, and the bolt with defective phenomenon is rejected; S3: according to the size of the bolt, the two groups of fixed blocks of the bolt detection device are adjusted, the bolt is placed between the two groups of fixed blocks, and the bolt is fixed by the two groups of fixed blocks, a plurality of bolts can be fixed at the same time, then the clamping piece and the bolt are moved downward to the bottom of the limiting plate by the hydraulic cylinder, and pass through the limiting plate; S4: then install the nut at the bottom of the limiting plate, rotate the nut into the bottom of the bolt, and fix the bottom of the bolt by tightening the nut; S5: start the hydraulic cylinder, adjust the tension value, then move the hydraulic cylinder upward, and pull the bolt at the same time, until the bolt is broken, and record the value at the time of breaking; The bolt detection device in S3 is specifically: the bolt detection device comprises a machining table body (1), a support column (2) is fixedly connected to the bottom of the machining table body (1), a support rod (3) is fixedly connected to the top of the support column (2), a first hydraulic cylinder (4) is fixedly connected to the bottom of one side of the support rod (3), and a clamping assembly is arranged at the bottom of the first hydraulic cylinder (4). The clamping assembly includes a top plate (6) fixed at the bottom of the first hydraulic cylinder (4), one side of the bottom of the top plate (6) is fixedly connected with a first fixed plate (7), one side of the first fixed plate (7) is fixedly connected with a fixed block (8), the side away from the fixed block (8) of the first fixed plate (7) is fixedly connected with a first motor (9), the output end of the first motor (9) is fixedly connected with a first screw rod (10), one side of the first screw rod (10) penetrates through the first fixed plate (7), the bottom of the top plate (6) away from the first fixed plate (7) is provided with a first sliding groove (12), the inner wall of the first sliding groove (12) is slidably connected with a first sliding rod (13), the bottom of the first sliding rod (13) extends out of the first sliding groove (12), the bottom of the first sliding rod (13) is fixedly connected with a second fixed plate (11), the inner wall of the second fixed plate (11) is provided with a threaded hole, the inner wall of the second fixed plate (11) is threadedly connected with the first screw rod (10), the fixed block (8) is provided with eight groups and is symmetrically distributed on one side of the first fixed plate (7) and the second fixed plate (11), the inner wall of the fixed block (8) is provided with an arc-shaped groove, one side of the machining table body (1) is fixedly connected with a supporting plate (14), the top end of the supporting plate (14) is fixedly connected with a second hydraulic cylinder (15), one end of the second hydraulic cylinder (15) is fixedly connected with a toothed plate (16), the top end of the machining table body (1) is fixedly connected with a bottom plate (17), the top end of the bottom plate (17) is provided with a circular hole, one side of the top end of the bottom plate (17) is provided with a placing groove (18), the toothed plate (16) is slidably connected to the inner wall of the placing groove (18), the top end of the bottom plate (17) is provided with a rotating groove (19), the cross section of the rotating groove (19) is L-shaped, the rotating groove (19) is annular, the rotating groove (19) is arranged outside the circular hole, the inner wall of the rotating groove (19) is rotatably connected with a rotating block (20), the cross section of the rotating block (20) is L-shaped, the top end of the rotating block (20) extends out of the rotating groove (19), the top end of the rotating block (20) is fixedly connected with a gear (21), one side of the gear (21) is engaged with the toothed plate (16), the center of the gear (21) is fixedly connected with a threaded sleeve (22), the gear (21), the threaded sleeve (22), the rotating groove (19) and the circular hole are provided with four groups and are parallelly distributed on the top of the bottom plate (17).

2. The bolt tension detection method of claim 1, wherein: The processing table body (1) top side is fixedly connected with a limiting block (23), the inner wall of the limiting block (23) is rotatably connected with a second screw (24), the second screw (24) is a bidirectional screw, the side, away from the limiting block (23), of the second screw (24) is sleeved with a positioning block (25), the bottom of the positioning block (25) is fixedly connected to the top of the processing table body (1), the side, away from the positioning block (25), of the second screw (24) penetrates through the limiting block (23), the side, away from the positioning block (25), of the second screw (24) is fixedly connected with a rotating disc (26), the outer wall of the second screw (24) is threadedly connected with a nut (27), the top of the nut (27) is fixedly connected with a connecting rod (28), the top of the connecting rod (28) is fixedly connected with a limiting plate (29), the limiting plate (29) is arranged at the top of the threaded sleeve (22), one side of the limiting plate (29) is provided with a circular groove, the top of the circular groove is provided with an inclined slope (35), the top of the processing table body (1) is provided with a second sliding groove (30), the inner wall of the second sliding groove (30) is slidably connected with a second sliding rod (31), the top of the second sliding rod (31) extends out of the second sliding groove (30), the top of the second sliding rod (31) is fixedly connected with the limiting plate (29), the limiting plate (29), the connecting rod (28), the nut (27), the second sliding groove (30) and the second sliding rod (31) are all provided with two groups and are symmetrically distributed on the top of the processing table body (1).

3. The bolt tension detection method of claim 2, wherein: The top of the fixing block (8) is fixedly connected with a backing plate (32), the backing plate (32) is consistent with the shape of the fixing block (8), the material of the backing plate (32) is rubber, and the number of the backing plate (32) is consistent with that of the fixing block (8).

4. The bolt tension detection method of claim 3, wherein: The top of the threaded sleeve (22) is fixedly connected with a receiving sleeve (33), the receiving sleeve (33) is funnel-shaped, the size of the bottom of the receiving sleeve (33) is consistent with the top of the threaded sleeve (22), and the top of the receiving sleeve (33) is attached to the bottom of the limiting plate (29).

5. The bolt tension detection method of claim 4, wherein: One side of the supporting column (2) is fixedly connected with a reinforcing rib (34), the top of the reinforcing rib (34) is fixedly connected to the bottom of the processing table body (1), and the reinforcing rib (34) and the supporting column (2) are provided with four groups and are symmetrically distributed on the bottom of the processing table body (1).

6. The bolt tension detection method of claim 5, wherein: The supporting rod (3) is L-shaped, the inner wall of the supporting rod (3) is fixedly connected with a supporting plate (36), and the supporting plate (36) is arranged in an inclined manner.

7. The bolt tension detection method of claim 6, wherein: The bottom of the supporting column (2) is fixedly connected with a bottom pad (37), the material of the bottom pad (37) is rubber, and the number of the bottom pad (37) is consistent with that of the supporting column (2).

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